<template>
        <footer class="footer">
      <!-- 统计 -->
      <span class="todo-count">合 计:<strong> {{list.length}} </strong></span>
      <!-- 清空 -->
      <button class="clear-completed" @click="clear">
        清空任务
      </button>
    </footer>
</template>
<script>
export default {
    props:['list'],
    methods: {
        clear() {
            this.$emit('clear',this.list)
        }
    }
}
</script>